Evidence map›Paper›PMID 22876187›Full record

ArticlePLoS pathogens2012

Structural bases of coronavirus attachment to host aminopeptidase N and its inhibition by neutralizing antibodies.

Juan Reguera, César Santiago, Gaurav Mudgal, Desiderio Ordoño, Luis Enjuanes, José M Casasnovas

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 153 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
153citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

153 citing papers in PubMed, 1 synthesis or guideline pooled it, 207 citations in OpenAlex.

  1. SARS-CoV-2 cell entry beyond the ACE2 receptor.Molecular biology reports · 2022
    Pooled it
  2. Trial
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  11. Construction of subunit vaccine by fusingFrontiers in veterinary science · 2026
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  16. Review
  17. Metagenomic analysis of viral diversity in Portuguese bats.Veterinary research communications · 2025
    Article
  18. Article
  19. Article
  20. Article

93 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Juan RegueraCentro Nacional de Biotecnología, CNB-CSIC, Madrid, Spain.
César Santiago
Gaurav Mudgal
Desiderio Ordoño
Luis Enjuanes
José M Casasnovas
Centro Nacional de Biotecnología · ES

Funding

SARS-CoV Proteins in Heterologous Viral InfectionP01AI060699 · NIAID · UNIVERSITY OF IOWA · PI PERLMAN, STANLEY · 2004 to 2021
$21.5M
6 · The paper itself

Abstract

The coronaviruses (CoVs) are enveloped viruses of animals and humans associated mostly with enteric and respiratory diseases, such as the severe acute respiratory syndrome and 10-20% of all common colds. A subset of CoVs uses the cell surface aminopeptidase N (APN), a membrane-bound metalloprotease, as a cell entry receptor. In these viruses, the envelope spike glycoprotein (S) mediates the attachment of the virus particles to APN and subsequent cell entry, which can be blocked by neutralizing antibodies. Here we describe the crystal structures of the receptor-binding domains (RBDs) of two closely related CoV strains, transmissible gastroenteritis virus (TGEV) and porcine respiratory CoV (PRCV), in complex with their receptor, porcine APN (pAPN), or with a neutralizing antibody. The data provide detailed information on the architecture of the dimeric pAPN ectodomain and its interaction with the CoV S. We show that a protruding receptor-binding edge in the S determines virus-binding specificity for recessed glycan-containing surfaces in the membrane-distal region of the pAPN ectodomain. Comparison of the RBDs of TGEV and PRCV to those of other related CoVs, suggests that the conformation of the S receptor-binding region determines cell entry receptor specificity. Moreover, the receptor-binding edge is a major antigenic determinant in the TGEV envelope S that is targeted by neutralizing antibodies. Our results provide a compelling view on CoV cell entry and immune neutralization, and may aid the design of antivirals or CoV vaccines. APN is also considered a target for cancer therapy and its structure, reported here, could facilitate the development of anti-cancer drugs.

Indexed as

Virus AttachmentAmino Acid SequenceAnimalsAntibodies, NeutralizingAntibodies, ViralCD13 AntigensCrystallography, X-RayHumansMolecular Sequence DataPorcine Respiratory CoronavirusProtein Structure, QuaternaryProtein Structure, TertiaryViral Envelope ProteinsAntibodies, NeutralizingAntibodies, ViralCD13 AntigensViral Envelope Proteins

Identifiers

PMID22876187
PMCPMC3410853
OpenAlexW2122276188

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.